Kerosene vs. Paraffin
“Kerosene” and “paraffin” overlap as regional names for a petroleum liquid fuel used for heating and lighting. The match is sense-specific because “paraffin” also refers to wax.
For the liquid fuel, British English often uses “paraffin” where American English uses “kerosene”; “paraffin” can also mean paraffin wax.
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| liquid fuel in US-oriented vocabulary | kerosene | Use “kerosene” for the fuel in US English. |
| same fuel in common British vocabulary | paraffin | Use “paraffin” where British usage calls for it; note that “paraffin” can also refer to wax. |
Quick tests
Meaning / construction test
Are you writing for a US audience about the liquid fuel?
If yes: Prefer “kerosene.”
If no: In British-oriented copy, “paraffin” may be the expected fuel term; clarify “paraffin wax” when the wax sense could cause ambiguity.
Caveat: The regional fuel terms overlap, but “paraffin” is semantically broader because it can also refer to paraffin wax.
Examples
The heater runs on kerosene.
“Kerosene” is the ordinary US fuel term.
The shop sells paraffin for portable heaters.
“Paraffin” is a common British term for the fuel.
The candle is made from paraffin wax.
Adding “wax” distinguishes the non-fuel sense clearly.
Further guidance
Core difference
In the liquid-fuel sense, “paraffin” is a common British term corresponding to American “kerosene.”
Fast Test
If you mean the clear petroleum fuel for heaters or lamps, choose the regional term expected by your audience; if you mean wax, use “paraffin” or “paraffin wax,” not “kerosene.”
Usage Boundary
Treat the pair as regional equivalents only in the liquid-fuel sense. “Paraffin” also names paraffin wax, which “kerosene” does not.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- KEROSENE — Cambridge Dictionary (opens in a new tab)Cambridge University Press & Assessment · Regional lexical evidence that kerosene is also called paraffin in UK fuel usage.
- PARAFFIN — Cambridge Dictionary (opens in a new tab)Cambridge University Press & Assessment · Regional and sense evidence: UK liquid-fuel paraffin corresponds to US kerosene, while paraffin also has a wax sense.